Merge pull request #4195 from taosdata/feature/wal

[TD-1896]<fix>: Wal data may be lost when the system crashes

src/common/inc/tglobal.h

@@ -44,6 +44,7 @@ extern int32_t  tsMaxShellConns;
 extern int32_t  tsShellActivityTimer;
 extern uint32_t tsMaxTmrCtrl;
 extern float    tsNumOfThreadsPerCore;
+extern int32_t  tsNumOfCommitThreads;
 extern float    tsRatioOfQueryThreads;  // todo remove it
 extern int8_t   tsDaylight;
 extern char     tsTimezone[];

src/common/src/tglobal.c

@@ -51,6 +51,7 @@ int32_t tsMaxShellConns  = 5000;
 int32_t tsMaxConnections = 5000;
 int32_t tsShellActivityTimer  = 3;  // second
 float   tsNumOfThreadsPerCore = 1.0f;
+int32_t tsNumOfCommitThreads = 1;
 float   tsRatioOfQueryThreads = 0.5f;
 int8_t  tsDaylight       = 0;
 char    tsTimezone[TSDB_TIMEZONE_LEN] = {0};
@@ -426,6 +427,16 @@ static void doInitGlobalConfig(void) {
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
 
+  cfg.option = "numOfCommitThreads";
+  cfg.ptr = &tsNumOfCommitThreads;
+  cfg.valType = TAOS_CFG_VTYPE_INT32;
+  cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG;
+  cfg.minValue = 1;
+  cfg.maxValue = 100;
+  cfg.ptrLength = 0;
+  cfg.unitType = TAOS_CFG_UTYPE_NONE;
+  taosInitConfigOption(cfg);
+
   cfg.option = "ratioOfQueryThreads";
   cfg.ptr = &tsRatioOfQueryThreads;
   cfg.valType = TAOS_CFG_VTYPE_FLOAT;

src/inc/twal.h

@@ -54,16 +54,17 @@ typedef int32_t FWalWrite(void *ahandle, void *pHead, int32_t qtype, void *pMsg)
 int32_t walInit();
 void    walCleanUp();
 
-twalh   walOpen(char *path, SWalCfg *pCfg);
-int32_t walAlter(twalh pWal, SWalCfg *pCfg);
-void    walStop(twalh);
-void    walClose(twalh);
-int32_t walRenew(twalh);
-void    walRemoveOldFiles(twalh);
-int32_t walWrite(twalh, SWalHead *);
-void    walFsync(twalh, bool forceFsync);
-int32_t walRestore(twalh, void *pVnode, FWalWrite writeFp);
-int32_t walGetWalFile(twalh, char *fileName, int64_t *fileId);
+twalh    walOpen(char *path, SWalCfg *pCfg);
+int32_t  walAlter(twalh pWal, SWalCfg *pCfg);
+void     walStop(twalh);
+void     walClose(twalh);
+int32_t  walRenew(twalh);
+void     walRemoveOneOldFile(twalh);
+void     walRemoveAllOldFiles(twalh);
+int32_t  walWrite(twalh, SWalHead *);
+void     walFsync(twalh, bool forceFsync);
+int32_t  walRestore(twalh, void *pVnode, FWalWrite writeFp);
+int32_t  walGetWalFile(twalh, char *fileName, int64_t *fileId);
 uint64_t walGetVersion(twalh);
 
 #ifdef __cplusplus

src/util/src/tutil.c

@@ -377,7 +377,8 @@ int taosCheckVersion(char *input_client_version, char *input_server_version, int
 
   for(int32_t i = 0; i < comparedSegments; ++i) {
     if (clientVersionNumber[i] != serverVersionNumber[i]) {
-      uError("the %d-th number of server version:%s not matched with client version:%s", i, server_version, version);
+      uError("the %d-th number of server version:%s not matched with client version:%s", i, server_version,
+             client_version);
       return TSDB_CODE_TSC_INVALID_VERSION;
     }
   }

src/vnode/src/vnodeMain.c

@@ -28,8 +28,6 @@
 #include "vnodeCfg.h"
 #include "vnodeVersion.h"
 
-#define DEFAULT_COMMIT_THREADS 1
-
 static SHashObj*tsVnodesHash;
 static void     vnodeCleanUp(SVnodeObj *pVnode);
 static int      vnodeProcessTsdbStatus(void *arg, int status);
@@ -69,7 +67,7 @@ int32_t vnodeInitResources() {
     return TSDB_CODE_VND_OUT_OF_MEMORY;
   }
 
-  if (tsdbInitCommitQueue(DEFAULT_COMMIT_THREADS) < 0) {
+  if (tsdbInitCommitQueue(tsNumOfCommitThreads) < 0) {
     vError("failed to init vnode commit queue");
     return terrno;
   }
@@ -317,6 +315,8 @@ int32_t vnodeOpen(int32_t vnode, char *rootDir) {
     pVnode->version = walGetVersion(pVnode->wal);
   }
 
+  tsdbSyncCommit(pVnode->tsdb);
+  walRemoveAllOldFiles(pVnode->wal);
   walRenew(pVnode->wal);
 
   SSyncInfo syncInfo;
@@ -592,7 +592,7 @@ static int vnodeProcessTsdbStatus(void *arg, int status) {
 
   if (status == TSDB_STATUS_COMMIT_OVER) {
     vDebug("vgId:%d, commit over, fver:%" PRIu64 " vver:%" PRIu64, pVnode->vgId, pVnode->fversion, pVnode->version);
-    walRemoveOldFiles(pVnode->wal);
+    walRemoveOneOldFile(pVnode->wal);
     return vnodeSaveVersion(pVnode);
   }
 

src/wal/src/walMgmt.c

@@ -128,16 +128,7 @@ void walClose(void *handle) {
   taosClose(pWal->fd);
 
   if (pWal->keep != TAOS_WAL_KEEP) {
-    int64_t fileId = -1;
-    while (walGetNextFile(pWal, &fileId) >= 0) {
-      snprintf(pWal->name, sizeof(pWal->name), "%s/%s%" PRId64, pWal->path, WAL_PREFIX, fileId);
-
-      if (remove(pWal->name) < 0) {
-        wError("vgId:%d, wal:%p file:%s, failed to remove", pWal->vgId, pWal, pWal->name);
-      } else {
-        wInfo("vgId:%d, wal:%p file:%s, it is removed", pWal->vgId, pWal, pWal->name);
-      }
-    }
+    walRemoveAllOldFiles(pWal);
   } else {
     wDebug("vgId:%d, wal:%p file:%s, it is closed and kept", pWal->vgId, pWal, pWal->name);
   }

src/wal/src/walWrite.c

@@ -63,7 +63,7 @@ int32_t walRenew(void *handle) {
   return code;
 }
 
-void walRemoveOldFiles(void *handle) {
+void walRemoveOneOldFile(void *handle) {
   SWal *pWal = handle;
   if (pWal == NULL) return;
   if (pWal->keep == TAOS_WAL_KEEP) return;
@@ -86,6 +86,22 @@ void walRemoveOldFiles(void *handle) {
   pthread_mutex_unlock(&pWal->mutex);
 }
 
+void walRemoveAllOldFiles(void *handle) {
+  if (handle == NULL) return;
+
+  SWal *  pWal = handle;
+  int64_t fileId = -1;
+  while (walGetNextFile(pWal, &fileId) >= 0) {
+    snprintf(pWal->name, sizeof(pWal->name), "%s/%s%" PRId64, pWal->path, WAL_PREFIX, fileId);
+
+    if (remove(pWal->name) < 0) {
+      wError("vgId:%d, wal:%p file:%s, failed to remove", pWal->vgId, pWal, pWal->name);
+    } else {
+      wInfo("vgId:%d, wal:%p file:%s, it is removed", pWal->vgId, pWal, pWal->name);
+    }
+  }
+}
+
 int32_t walWrite(void *handle, SWalHead *pHead) {
   if (handle == NULL) return -1;
 

tests/script/general/wal/maxtables.sim

+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 100
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode1 -c tableIncStepPerVnode -v 2
+
+
+print ============== deploy
+system sh/exec.sh -n dnode1 -s start 
+sleep 3001
+sql connect
+
+sql create database d1
+sql use d1
+sql create table st (ts timestamp, tbcol int) TAGS(tgcol int)
+
+$i = 0
+while $i < 100
+  $tb = t . $i
+  sql create table $tb using st tags( $i )
+  sql insert into $tb values (now , $i ) 
+  $i = $i + 1
+endw 
+
+sql_error sql create table tt (ts timestamp, i int) 
+
+print ===============  step3
+sql select * from st;
+if $rows != 100 then
+  return -1
+endi
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 4
+sleep 3000
+
+print ===============  step4
+system sh/exec.sh -n dnode1 -s start
+sleep 3000
+
+sql select * from st;
+if $rows != 100 then
+  return -1
+endi
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT

tests/script/jenkins/basic.txt

@@ -238,6 +238,7 @@ cd ../../../debug; make
 
 ./test.sh -f general/wal/sync.sim
 ./test.sh -f general/wal/kill.sim
+./test.sh -f general/wal/maxtables.sim
 
 ./test.sh -f unique/account/account_create.sim
 ./test.sh -f unique/account/account_delete.sim